24-27 November 2022
Karlsruhe Institute of Technology
Europe/Berlin timezone

Rydberg atom interactions at the interface of an optical nanofiber

26 Nov 2022, 16:00
Foyer (KIT Campus South)


KIT Campus South

KIT Campus map: https://www.kit.edu/campusplan/ Building: 30.22 Room: Foyer im 1. und 2. OG Address: Institute of Technology, Engesserstraße 7, 76131 Karlsruhe Coordinates: 49.01244, 8.41062
Poster Physics Posters Poster session


Ms. Aswathy Raj (Okinawa Institute of Science and Technology (OIST), Japan)


Rydberg atoms are considered as one of the most promising candidates for quantum technologies. We have realized Rydberg atom excitation using light guided by an optical nanofiber (ONF). The large evanescent field resulting from the strong confinement of light in the ONF serves as a good platform for atom-light interactions. Our experiment consists of an ONF overlapped with a cloud of Rubidium-87 atoms cooled and confined by a magneto-optical trap (MOT). The atoms from the MOT are excited to Rydberg state via a two photon process, with one photon from the cooling beams and the other guided through the ONF. Atoms excited to the Rydberg state are lost from the MOT, leading to a reduction in the fluorescence measured, which we use as an indirect measurement of the rate of excitation. We could utilize our system for further studies on surface-atom interactions and extend our system for trapping atoms.

Category Other

Primary authors

Mr. Alexey Vylegzhanin (Okinawa Institute of Science and Technology (OIST), Japan) Dr. Dylan Brown (Okinawa Institute of Science and Technology (OIST), Japan) Prof. Sile Nic Chormaic (Okinawa Institute of Science and Technology (OIST),Japan) Ms. Aswathy Raj (Okinawa Institute of Science and Technology (OIST), Japan)

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